import { describe, expect, it } from 'vitest';

import {
  collectLocaleParityIssues,
  LOBBY_I18N_CATALOG,
  normalizeLocale,
  SUPPORTED_LOCALES,
  translateCatalogPath,
} from '../shared/i18n/lobby-loader';

describe('shared lobby i18n loader parity', () => {
  it('keeps da/en translation parity in shared keyspace', () => {
    const issues = collectLocaleParityIssues(LOBBY_I18N_CATALOG, SUPPORTED_LOCALES);
    expect(issues).toEqual([]);
  });

  it('normalizes browser-style locale tags to supported keyspace locales', () => {
    expect(normalizeLocale('da-DK')).toBe('da');
    expect(normalizeLocale('da_DK')).toBe('da');
    expect(normalizeLocale('en-US')).toBe('en');
    expect(normalizeLocale('en_US')).toBe('en');
    expect(normalizeLocale('fr-FR')).toBe('en');
  });

  it('resolves shared frontend ui keys with fallback-safe behavior', () => {
    expect(
      translateCatalogPath(LOBBY_I18N_CATALOG.frontend.ui as Record<string, unknown>, 'host.start_round', 'da-DK'),
    ).toBe('Start runde');

    expect(
      translateCatalogPath(LOBBY_I18N_CATALOG.frontend.ui as Record<string, unknown>, 'app.language_label', 'en-US'),
    ).toBe('Language');

    expect(
      translateCatalogPath(LOBBY_I18N_CATALOG.frontend.ui as Record<string, unknown>, 'host.non_existing_key', 'da'),
    ).toBe('host.non_existing_key');
  });
});